Reversing-valve for internal-combustion engines.



E. IV?. PERRY.

vNEVER'SING VALVE FOR INTERNAL CONBUSTIUN ENGINES..

' APPLICATION FILED AFR. 7. 1917. n l gm Patented Nom-2f, 19W.

STATES FATEN T EDGAR IVI. PERRY, OF BAY, ARKANSAS, ASSIGNOR OF @NE-FOURTH TO C. S. DE FIELD, OF EAST PRAIRIE, MISSOURI.

REVERSING-VALVE FOR INTERNAL-COMBUSTION ENGNES.

Specification of Letters Patent.

Patented Nov. 2?, 319i l?.

Application filed April 7, 1917. Serial No. 160,477.

To all whom it may concern.'

Be it known that EDGAR M. FERRY, a citizen of the United States, residing at Bay, in the county of Craighead and State of Arkansas, have invented certain new and useful Improvements in Reversing-Valves for internal-Combustion Engines; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in valve mechanisms, and contemplates more especially an improved form of reversing valve for use in connection with internal combustion engines.

An object of the present invention is the lproduction of a valve mechanism including in combination a plurality of ported sleeves adapted to register at certain times for operating the engine in one direction and arranged to register at other times for operating the engine in the opposite direction.

Another object of this invention is to produce a valve mechanism located adjacent the upper end of an engine cylinder, said mechanism comprising a revoluble7 conical shaped valve, a coperating conical shaped reversing sleeve, and an internally ported valveV casing communicating with the cylinder of an engine.

Another object of the present invention is the production of a rotary valve mechanism designed to facilitate its easy rotation and possessing certain structural advantages whereby the said valve mechanism is kept cool and all tendencies of the valve to stick or jam are obviated.

A further object of the invention is the production of a simple, elicient and durable valve mechanism which can be readily set for reversing the direction of rotation of the engine.

With these and other objects in view, the invention further consists in the combination and arrangement of the several parts hereinafter to be described and pointed out in the appended claims.

In the accompanying drawings which show by way of illustration an embodiment of my invention,

Figure l is a sectional elevation, indicated on the line 1 1 of Fig. 2, of an internal combustion engine with my mechanism applied thereto.

Fig. 2 is a plan view.

Fig. 3 is a horizontal sectional view on an enlarged scale on the line 3-3 of Fig. l, showing the position of the valve when the ports are set to admit a charge of fuel to the engine cylinder.

Fig. is a similar view on the line el-il of the valve in the same position as that of Fig. 3.

Fig. 5 is an enlarged vertical sectional view showing the position of the valve when set for exhausting the burnt gases from the cylinder.

Fig. 6 is a horizontal sectional view on the line 6*(3 of Fig. 5 showing the path of the burnt gases as discharged from the cylinder.

F ig. 7 is a detailed top plan view of the reversing sleeve lever moved in the direction of the arrow to a position for reversing the direction of rotation of the engine.

Fig. 8 is an enlarged horizontal, sectional view of the valve in the reverse position taken on a line corresponding to that of line #l in Fig. l, said valve being in a position to admit a charge of fuel to the cylinder.

Fig. 9 is a similar view of the valve in the reverse position taken on a line corresponding to the line 3-3 of Fig. l, said valve being in a position to admit a charge of fuel to the engine cylinder.

Fig. l0 is a similar view of the valve in the reverse position taken on a line correspending to the line 6-6 of Fig. 5, said valve being shown in a position when the burnt gases are exhausted from the cylinder.

Fig. ll is a diagrammatic illustration of the interior ported valve casing, showing the ports in said casing in their relative position to those ports provided in the reversing sleeve and the rotating valve.

Fig. l2 is a detached perspective view of the reversing sleeve operable within the valve casing7 and Fig. 13 is a detached perspective view of the rotating valve, the ports of which register with those of the reversing sleeve and the ported valve casing.

This invention has been designed for use in connection with internal combustion engines to facilitate the ready admission of improved valve the fuel and exhaust of the burnt gases through a rotary form of valve. lt comprises among other things a conical shaped valve casing located near the upper end of an engine cylinder, a conical shaped reversing sleeve adapted to fit within the said casing and to be set for the direction of rotation of the engine which may be desired, a conical shaped rotatable valve operable within the conical shaped reversing sleeve, and means including driving gears for rotating the said valve in timed relation to the reciprocation of the piston. in the engine. These several conical shaped members are each provided with registering ports to effect the admission and discharge of the fuel as will be hereinafter described. llVhile I have shown my improved form of valve mechanism applied to a single cylinder engine, it will be readily understood that it is equally applicable for use in distributing fuel and effecting the exhaust thereof to a multiplicity of cylinders such as the two, four, six and any of the multiple cylinder types.

Referring to the drawings, in which corresponding reference characters indicate similar parts, the form of internal conibustion engine shown comprises a cylinder 1, in which reciprocates the piston 2 operated through the crank shaft 3 suitably journaled in the frame of the engine. rThe form of engine herein shown is of a conventional type and a further description thereof together with its usual spark plug and other parts will not be given. The improved valve mechanism is mounted within the valve casing 4 which may be formed integral with the engine cylinder or bolted thereto as may be desired. A suitable plate 5, together with a spring G, positions the valve mechanism within the casing against a suitable bearing, as shown. rllhe valve casing is preferably water jacketed as shown, that is to say, it may be in communication with the water jacket surrounding the cylinder of the engine, or it may be jacketed independent thereof.

The reversing valve 7 is of frusto-conical shape corresponding to the bore of the valve casing and is in the nature of a sleeve having a reduced upper end 8 extending through the upper wall of the valve casing, and having secured to it a suitable lever 9 carrying a spring pawl 9a adapted to coaet with a serrated surface 10 for holding the said reversing valve in a set position.

The rotating valve 11 is of frusto-conical shape and fits Within the reversing sleeve 7 as shown. This valve is provided with an upwardly protruding shaft 12 which extends through the sleeve portion 8 of the reversing valve. Keyed to the upper end of the shaft 12 is a gear 13 adapted to mesh with a similar gear 14 keyed to a shaft 15,

which latter is mounted in suitable bearings 16 and receives motion through the beveled gears 17 secured to its lower end and adapted to mesh with a beveled gear 13 secured to the crank shaft of the engine. This gearing is in timed relation to the cycle of the engine and the corresponding rotation of the valve, and as shown herein is designed to effect one revolution of the rotating valve to two revolutions of the crank shaft of the engine.

Referring to Figs. 11, 12 and 13, the respeetive ports shown therein will now be described, and the relative registering coperation thereof in the inlet and exhaust and reversed positions as illustrated in the several horizontal sectional views will be described later. is shown in Fig. 11 (diagrammatically), the valve` casing t is internally ported as follows: VThe intake port 2O is adapted to receive a charge from Van intake manifold I from any suitable source of supply and emit the said charge after passing through the valve into the port 21 and thence into the cylinder of the engine. The exhaust port 22 is designed to receive the burnt gases from the cylinder and emit the same through the exhaust port 23 to one branch El of the exhaust manifold E. The inlet port the inlet port 2O and emit it to the cylinder' of the engine when the valve mechanism is reversed and the valve rotated in the direction of the arrow shown in Figs. 8 to 10, inclusive. rIhe exhaust port 26 in the valve casing receives the burnt gases and discharges them through the exhaust port 25 into the branch E2 of the exhaust manifold., when the valve is reversed. Y

lVhen the reversing valve or sleeve 7 is in the position shown in Figs. 1 to 6, inclusive, the ports therein register with the ports in the valve casing as follows: The inlet port 27 -in the reversing sleeve registers with the inlet port 34C in the valve 11, port 20 in the valve casing and the inlet port 28 in the reversing sleeve registers with the inlet port 21 of the valve casing for conducting a charge to the cylinder, as will be presently described. The exhaust port 29 in the reversing sleeve registers with the exhaust port 22 in the valve casing, and the exhaust port 30 in the reversing valve registers with the exhaust port 23 in the valve casing. Vhen the valve sleeve 7 is reversed as shown in Figs. 7 to 10, inclusive, the intake port 31 of the reversing sleeve will register with the intake port 20 of the valve casing, and the intake port 28 of the reversing sleeve will register with the intake port 24 of the valve casing. The exhaust port 32 in the reversing sleeve will register with the exhaust port 25 in the valve casing, and the exhaust port 33 in the reversing sleeve will register with the exhaust port 26 in the 24 is used to receive a charge from retenes valve casing leading to the exhaust manifold.

The rotating valve l1 which continuously revolves in the direction of the arrow shown in Figs. 1 to 6 when the engine is rotating in one direction, and which continuously ro tates in the direction of the arrow shown in Figs. 8 to l0, when the valve is reversed, and the engine rotated in the opposite direction, is of novel construction and ported as follows: The intake port 34 of the valve l1 registers with the intake ports 27 and 2() of the hereinbefore described reversing sleeve and valve casing, respectively, and directs a charge through said ports into the conduit 35, and thence through the inlet port 36 of the valve 11, which registers with inlet ports 28 and 21 of the reversing sleeve and valve casing, respectively. The exhaust port 37 in the valve 11 is brought into register with the ports 29 and 22 of the reversing sleeve and valve casing,respectively, and permits of a. discharge of the burnt gases from the cylinder into the chamber 38 of the valve, surrounding the conduit 85, and thence through the exhaust port 39 in the valve which registers with the exhaust ports 30 and 23 formed in the reversing sleeve and valve casing, respectively.

As shown, the chamber 38 of the valve is closed by an upper wall l0 and a lower wall 41, which allows the burnt gases to pass around the conduit 85. A bottom wall 112 is provided in the valve and forms an inlet chamber 43 communicating with the conduit 35 as shown. An upper inlet chamber 4e is provided in the valve with which the conduit 35 communicates. It will be seen 'that as the fuel or mixture is admitted, its passage into the chamber L14 through the conduit 35, into the chamber 33 and thence into the cylinder produces a somewhat protracted and cooling effect upon the valve, thereby counteracting the tendency to overheat the valve by the outward passage of the burnt gases. This, together with the cooling effeet of the circulating water in the valve casing will prevent the valve from overheating, jambing or sticking as is frequently now the case in rotary types of valves.

Referring to Figs. 1, 3 and 4, wherein the valve and associated parts are shown in the position to admit a charge of fuel to the engine cylinder, and the said valve being operated in a direction of the arrow indicated in said figures, it will be noted that the inlet ports hereinbefore described in connection with the showing in Figs. 11, 12 and 13, are positioned to accomplish this admission of the fuel as will now be described.

In Figs. 1, 2 and 3 of the drawing it will be noted that the charge is admitted through the port 20 in the valve casing and through the registering ports 27 of the reversing sleeve and 34 of the valve into the chamber 44C. The charge is then conducted downwardly through the conduit 35 into the chamber 4:8 and emitted through the registering ports 36 in the valve 2S in the reversing sleeve and 21 in the valve casing, thence to the cylinder of the engine. rlhe Charge being drawn into the cylinder of the engine is compressed and ignited in the usual manner to operate the engine. lo exhaust the burnt gases from the cylinder, reference will be had to the position of the valve in Figs. 5 and 6. lt will be noted that the burnt gases are exhausted through the registering 'posts 22 in the valve casing, 29 in the reversing valve and 37 in the valve, thence through the chamber surrounding the conduit 35 and out through the registering ports 39 in the valve 30, in the reversing sleeve and 23 in the valve casing.

lVhen the engine is reversed by manipulating the lever 9 to the position shown in Fig. 7 of the drawing, the inlet and exhaust ports, as shown in Figs. S, 9 and 1() are brought into register for operating the engine in an opposite direction. The position of the valve in Figs. 8 and 9 shows a charge being' admitted to the engine cylinder. 1t will be noted in Fig. 9 that the ports 20 in the valve casing, 31 in the reversing sleeve and 34 in the valve register. The charge passes through the chamber le into the conduit 35, thence into the chamber t3 and is emitted through the registering` ports 3G in the valve, 2S in the reversing sleeve and @il in the valve casing into the cylinder (see Fig. 8). ln this position the charge is drawn into the cylinder and ignited in the usual manner. The exhaust gases are connected through the valve as it rotates to the position shown in Fig. 10 of the drawing, that is to say, the exhaust gases are conducted through the ports 26 in the valve casing, `3 in the reversing sleeve and 37 in the valve, into the chamber 38, thence through the ports 39 in the valve, 32 in the reversing sleeve, 25 in the valve casing, thence into the exhaust manifold.

lt will be seen from the foregoing description that the operation of the engine in opposite directions is controlled by the manipulation of the reversing sleeve or valve 7 by moving the lever 9 in the respective positions shown in Figs. 2 and 7. It will also be obvious that the relative positioning of the frusto-conical valve reversing sleeve and correspondingly formed valve casing, together with the cliambered construction of the rotary valve for conducting the fuel to the cylinder and effecting' the exhaust therefrom, produces an efficient, durable and economical means for controlling the operation of an internal combustion engine. Various changes in the form and construction of my improved valve may be resorted to within the scope of my invention set out in the claims, and I do not limit myself to the exact proportions and details of construction herein set forth.

Having thus described my invention, what l claim and desire to secure by Letters Patent is:

l. In an internal combustion engine, the combination with a ported cylinder having a piston therein and a valve casing, of a rotary lo valve mounted in said casing having a fuel inlet conduit therethrough and an exhaust chamber surrounding said inlet conduit, a plurality of inlet ports in said valve communicating with the inlet conduit, another port in said valve communicating with the opposite end of the inlet conduit and one of the ports in the cylinder, a plurality of exhaust ports in said valve communicating with the aforesaid exhaust chamber and a reversing valve interposed between the valve casing and rotary valve, said reversing valve having a plurality of inlet and exhaust ports adapted to establish communication between the ported cylinder and the rotary valve for operating the engine in opposite directions. 2. ln an internal combustion engine, the combination with a ported cylinder having a piston therein and a valve casing, of a ro tary valve mounted in said casing having a fuel inlet conduit therethrough, inlet chambers communicating with said conduit at each end thereof, an exhaust chamber surrounding` said conduit and interposed between the aforesaid inlet chambers, a plurality of inlet ports in said rotary valve communicating with one of the inlet chambers, another port in said rotary valve communieating with the other inlet chamber and one of the ports in the cylinder, a plurality of 4o exhaust ports in said valve communicating with the aforesaid exhaust chamber, and a reversing valve interposed between the rotary valve and valve casing having ports adapted to register with the aforesaid inlet and exhaust ports, and ports of the cylinder for operating the engine in the desired direction of rotation.

3. In an internal combustion engine the combination with a ported cylinder having a piston therein and a valve casing, of a rotary valve mounted in said casing having a fuel inlet conduit therethrough and an exhaust chamber surrounding said inlet conduit, a plurality of inlet ports in said valve communicating with the inlet conduit, an-

other port in said valve communicating with the opposite end of the inlet conduitand with one of the ports in the cylinder, a plu-V rality of exhaust ports in said valve communicating with the aforesaid exhaust chamber, a reversing valve interposed between the valve casing and rotary valve, said reversing valve having a plurality of inlets and exhaust ports therein adapted to establish communication between the ported cylinder and the rotary valve for operating the engine in opposite direction, and means including a spring and opposed bearing for positioning the rotary valve and reversing valve snugly against the walls of the valve casing.

il. ln an internal combustion engine the combination with a ported cylinder having a piston therein and a valve casing, of a rotary valve mounted in said casing having a fuel inlet conduit therethrough, inlet chambers communicating with said conduit at each end thereof, an exhaust chamber surrounding said conduit and interposed between the aforesaid inlet chambers, a plurality of inlet ports in said rotary valve communicating with one of the inlet chambers, another port in said rotary valve communif eating with the other inlet chamber and one of the ports in the cylinder, and a plurality of exhaust ports in said valve communicating with the aforesaid exhaust chamber.

5. In an internal combustion engine, the combination with a frusto-conical valve casing, of a rotary frusto-conical valve mount ed in said casing having a fuel inlet conduit therethrough and an exhaust'chamber surrounding said inlet conduit, a plurality of inlet ports in said valve communicating with the inlet conduit, another port in said valve communicating with the opposite end of the inlet conduit and one of the ports in the cylinder, a plurality of exhaust ports in said valve communicating with the aforesaid eX- haust chamber, a reversing valve interposed between the valve casing and rotary valve, said reversing valve having a plurality of inlet and exhaust ports adapted to establish communication between the ported cylinder and the rotary valve for operating the engine in opposite directions, and means including a manually controlled lever for operating the reversing valve.

In testimony whereof I aflix my signature in presence of two subscribing witnesses.

EDGAR M .,PERRY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

